How severe is CVE-2007-0842?

CVE-2007-0842 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-0842 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-0842?

CVE-2007-0842 affects Microsoft Visual C++. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-0842?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-0842 published?

CVE-2007-0842 was published on 2007-02-13 and last updated on 2026-06-16.

CVE-2007-0842

CVE-2007-0842 is a medium-severity vulnerability in Microsoft Visual C++ with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Visual C++
Published: 2007-02-13
Last modified: 2026-06-16

Description

The 64-bit versions of Microsoft Visual C++ 8.0 standard library (MSVCR80.DLL) time functions, including (1) localtime, (2) localtime_s, (3) gmtime, (4) gmtime_s, (5) ctime, (6) ctime_s, (7) wctime, (8) wctime_s, and (9) fstat, trigger an assertion error instead of a NULL pointer or EINVAL when processing a time argument later than Jan 1, 3000, which might allow context-dependent attackers to cause a denial of service (application exit) via large time values. NOTE: it could be argued that this is a design limitation of the functions, and the vulnerability lies with any application that does not validate arguments to these functions. However, this behavior is inconsistent with documentation, which does not list assertions as a possible result of an error condition.

Frequently asked questions

What is CVE-2007-0842?: The 64-bit versions of Microsoft Visual C++ 8.0 standard library (MSVCR80.DLL) time functions, including (1) localtime, (2) localtime_s, (3) gmtime, (4) gmtime_s, (5) ctime, (6) ctime_s, (7) wctime, (8) wctime_s, and (9) fstat, trigger an assertion error instead of a NULL pointer or EINVAL when processing a time argument later than Jan 1, 3000, which might allow context-dependent attackers to cause a denial of service (application exit) via large time values. NOTE: it could be argued that this is a design limitation of the functions, and the vulnerability lies with any application that does not validate arguments to these functions. However, this behavior is inconsistent with documentation, which does not list assertions as a possible result of an error condition.
How severe is CVE-2007-0842?: CVE-2007-0842 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-0842 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0842?: CVE-2007-0842 affects Microsoft Visual C++. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-0842?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-0842 published?: CVE-2007-0842 was published on 2007-02-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:visual_c\+\+:2005:*:*:*:*:*:*:*

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